Sidewall for a bottle



FIG. 1 is a top front perspective view of a sidewall for a bottle showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken lines showing the bottle neck and base are for illustrative purposes only and do not form part of the claimed design. 

The ornamental design for a sidewall for a bottle, as shown and described. 